question_answer

Read the following information carefully. 'A@B' means 'A is added to B". 'A*B' means "A is multiplied by B'. 'A#B' means 'A is divided by B'. 'AB' means 'B is subtracted from A'. Total age of 12 boys is 'X' and the total age of 13 girls is 'Y'. What is the average age (a) of all the boys and girls together? (SOF NSO 2016)

A) (a) A = (X@Y) # 25                                          

B) (b) A = (XY) # 25

C) (c) A = (X@Y) * 25                                           

D) (d) None of these